Hello, I'm

Rafal Kowalski

Python Developer | FullStack | Data Engineering Enthusiast

Building scalable backends and efficient data solutions.

Rafal Kowalski Profile

About Me

I am a Python Developer experienced in backend and full-stack application development. My key skills include Python (FastAPI), PostgreSQL, and Docker, along with extensive experience working with REST APIs, Vue.js, and TypeScript.


I am passionate about Data Engineering and enjoy working with tools like Pandas and PySpark. I have experience in remote work and Agile teams, contributing to the creation of scalable and efficient solutions. Currently, I am constantly expanding my skills in cloud technologies and Big Data.

Technical Expertise

Backend & Core

  • Python & FastAPI
  • PostgreSQL & SQL
  • REST APIs
  • Docker

Frontend

  • Vue.js (Options/Composition)
  • TypeScript
  • HTML5 & CSS3
  • Responsive Design

Data & Tools

  • Pandas & NumPy
  • PySpark
  • Agile / Scrum
  • Git & CI/CD

Professional Experience

Deployment & Automation Engineer

Flytronic S.A.

04.2025 - Present

Test stand automation and validation. Developing test software with Python/pytest, managing Jenkins pipelines, and hardware integration/diagnostics.

Python pytest Jenkins Hardware

Full-Stack Developer (Freelance)

rkowalski.dev

11.2024 - Present

Developing interactive AI apps with LangChain. Extending Django/MySQL platforms, managing VPS deployments, and implementing responsive features.

Django LangChain AI MySQL

Full-Stack Developer

RFIDIO

09.2023 - 11.2024

Developed a management system web app. Implemented backend REST APIs using FastAPI and frontend with Vue.js/TypeScript in an Agile team.

FastAPI Vue.js TypeScript REST API

Junior Python Developer

DoKodu Sp. z o.o.

04.2023 - 01.2024

Developed and deployed web apps using Python and AWS. Created a Discord server management bot with SQLite and participated in Scrum processes.

Python AWS SQLite Discord API

Let's Connect

I'm always open to discussing new opportunities in Data Engineering and DevOps.